I think a wheel will always be better simply by the fact of the range you have in pedal and steering input over a controller. However from an enjoyment perspective, having a full rig is far more enjoyable than desk mounted.
By the time I went Fanatec and a full rig I’d been sim racing about 20 years and had a wheel for 15 years of that. So for me it was a relatively easy purschase but I do find it harder to recommend to others because it is a big investment.
However feel, and a sense of speed, is something you’ll always miss but good ffb does help. It’s a different feeling as it’s all through your hands than your ass. But you get attuned to the feeling what the car is doing still. Oversteer is always the obvious one as it forces the wheel to countersteer. But you also get to feel understeer, the floaty feeling when you’re right on the edge of grip etc.
It is the one area I’m struggling with GT7 is getting attuned to the cars and the ffb. Most of the time I’m alright but occasionally I get a snap of oversteer which catches me off guard and I can’t react to it. That isn’t to say it’s bad, it’s just not great.
A bit off topic really but Live for Speed still shines for me as fantastic force feedback. Getting the feeling and judging the balance as you get just the right amount of lift off oversteer to help turn in your fwd car. Or turning in your rwd and then almost holding the wheel straight as you play with the throttle to keep the car rotating. Raceroom is supposed to have fantastic ffb too but I’ve yet to try it.